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VulnerabilityPublished Updated

CVE-2026-13329: Buckaroo Woocommerce Payments Plugin · Improper Access Control

Affects Buckaroo Woocommerce Payments PluginSource CVE Database V5

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Not known to be exploited · CVSS 6.5 Medium : upgrade to 4.9.0 when convenient.

Data as of 1 Nov 2026, 08:20 UTC

CVSS 3.1 base score
6.5Medium
How severe the flaw is on the 0–10 CVSS scale.
EPSS
0.2% chance of exploitation in 30 days – higher than 22% of CVEsExploit Prediction Scoring System: the likelihood attackers will use this flaw soon.
Patch
Available – fixed in 4.9.0
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:H/A:N

Exploitation evidence

  1. Disclosed: evidence found.

    CVE published 1 Aug 2026

  2. Detectable: no evidence on record.

    No public nuclei template indexed

  3. Weaponized: no evidence on record.

    No public exploit code indexed in Metasploit or Exploit-DB

  4. Exploited in the wild: no evidence on record.

    Not in CISA KEV and no source reports exploitation

  5. Observed by OffSeq Mirage: no evidence on record.

    No attack traffic recorded by OffSeq Mirage sensors

A missing step is not evidence of safety. Sources: cve.org (opens in a new tab), the Metasploit, Exploit-DB and nuclei-templates index as of 31 Oct 2026.

What to do

Upgrade Buckaroo Woocommerce Payments Plugin to 4.9.0.

Affected software

ProductAffectedFixed in
Buckaroo Woocommerce Payments PluginAffected
  • <4.9.0
Fixed in
  • 4.9.0

AI-suggested

If you cannot patch yet, restrict authenticated user roles and permissions carefully, and monitor for unusual refund activity. Applying the plugin update to version 4.9.0 or later, once available, is recommended to remediate this issue.

Description

The Buckaroo Woocommerce Payments Plugin WordPress plugin before 4.9.0 does not perform any capability check or nonce validation on an AJAX action that processes payment capture refunds, allowing any authenticated user, including Subscribers, to trigger refunds against captured orders.

References

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